diff --git a/components/dfs/filesystems/jffs2/dfs_jffs2.c b/components/dfs/filesystems/jffs2/dfs_jffs2.c
index 4c6c208cd7f9d381b64f595047e4564cebac8dd8..f7999722ec729595585ab061cd4452e916f09a5f 100644
--- a/components/dfs/filesystems/jffs2/dfs_jffs2.c
+++ b/components/dfs/filesystems/jffs2/dfs_jffs2.c
@@ -334,7 +334,7 @@ static int dfs_jffs2_open(struct dfs_fd* file)
 	file->data = jffs2_file;
 	file->pos = jffs2_file->f_offset; 
 	file->size = 0;
-	jffs2_file_lseek(jffs2_file, (off_t *)(&(file->size)), SEEK_END);
+	jffs2_file_lseek(jffs2_file, (off_t *)(&(file->size)), DFS_SEEK_END);
 	jffs2_file->f_offset = (off_t)file->pos;
 	rt_mutex_release(&jffs2_lock);
 	
@@ -462,7 +462,7 @@ static int dfs_jffs2_lseek(struct dfs_fd* file,
 	
 	/* set offset as current offset */
 	rt_mutex_take(&jffs2_lock, RT_WAITING_FOREVER);
-	result = jffs2_file_lseek(jffs2_file, &offset, SEEK_SET);
+	result = jffs2_file_lseek(jffs2_file, &offset, DFS_SEEK_SET);
 	rt_mutex_release(&jffs2_lock);
 	if (result)
 		return jffs2_result_to_dfs(result);
diff --git a/components/dfs/filesystems/jffs2/include/os_sys_stat.h b/components/dfs/filesystems/jffs2/include/os_sys_stat.h
index 042da0257e856a6f031de4c4b78ec057a5d560e6..af3a049887fffe221a91388ba34c345c5512f206 100644
--- a/components/dfs/filesystems/jffs2/include/os_sys_stat.h
+++ b/components/dfs/filesystems/jffs2/include/os_sys_stat.h
@@ -322,6 +322,7 @@ typedef void *cyg_io_handle_t;
 typedef unsigned long mode_t;
 typedef unsigned int ino_t;
 typedef unsigned int dev_t;
+typedef int time_t;
 #elif defined(__CC_ARM)  
 #define mode_t unsigned long
 typedef unsigned int ino_t;